AutoCodes – Mercury – C1223 Mercury

C1223 Mercury Code - Brake Light Warning Output Circuit Failure

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Red Brake Warning Light. Common causes include Faulty Red Brake Warning Light, Red Brake Warning Light harness is open or shorted, Red Brake Warning Light circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C1223 Mercury indicates Brake Light Warning Output Circuit Failure.
Common causes
Common causes include Faulty Red Brake Warning Light, Red Brake Warning Light harness is open or shorted, Red Brake Warning Light circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,094
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 26, 2020
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Code C1223 Mercury Description

The Anti-Lock Brake System (ABS) Module monitors the Red Brake Warning Light. The ABS Module sets the OBDII code when the Red Brake Warning Light is not to factory specifications.
OBDII Code C1223 Mercury - Brake Light Warning Output Circuit Failure - AutoCodes.com
C1223 Mercury Code - Brake Light Warning Output Circuit Failure

What are the Possible Causes of the DTC C1223 Mercury?

  • Faulty Red Brake Warning Light
  • Red Brake Warning Light harness is open or shorted
  • Red Brake Warning Light circuit poor electrical connection

How to Fix the DTC C1223 Mercury?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1223 Mercury code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1223 Mercury Code

1. What are the common symptoms of OBDII code C1223 on a Mercury related to Brake Light Warning Output Circuit Failure?

- The common symptoms include the brake warning light staying illuminated on the dashboard, erratic brake light operation, and potential issues with the vehicle's ABS system.

2. What are the possible causes of OBDII code C1223 on a Mercury indicating Brake Light Warning Output Circuit Failure?

- The code C1223 can be triggered by issues such as a faulty brake light switch, damaged wiring in the brake light circuit, a malfunctioning ABS module, or a problem with the brake system's control unit.

3. How can I diagnose OBDII code C1223 related to Brake Light Warning Output Circuit Failure on my Mercury?

- Diagnosis typically involves checking the brake light switch for proper operation, inspecting the wiring for any damage or corrosion, testing the ABS module, and scanning the vehicle's computer for specific error codes.

4. Can I still drive my Mercury with OBDII code C1223 indicating Brake Light Warning Output Circuit Failure?

- It is not recommended to drive the vehicle with persistent brake warning light issues, as they can indicate potential safety hazards related to the brake system. It is advisable to have the problem diagnosed and repaired promptly.

5. How can I repair OBDII code C1223 on my Mercury due to Brake Light Warning Output Circuit Failure?

- Repair methods may vary depending on the underlying cause. Potential solutions include replacing the brake light switch, repairing damaged wiring, resetting the ABS module, or addressing issues with the control unit.

6. Is it safe to ignore OBDII code C1223 related to Brake Light Warning Output Circuit Failure on my Mercury?

- Ignoring the code and continuing to drive the vehicle with brake light warning output circuit issues can pose a safety risk. It is advisable to address the problem promptly to ensure the proper functioning of the brake system.

7. Can a DIY enthusiast fix OBDII code C1223 indicating Brake Light Warning Output Circuit Failure on a Mercury?

- While some individuals with automotive repair experience may be able to diagnose and address the issue themselves, it is recommended to seek professional help for complex brake system problems to ensure proper repair and safety.

8. Will resetting the OBDII system clear the C1223 code related to Brake Light Warning Output Circuit Failure on my Mercury?

- Resetting the OBDII system may temporarily clear the code, but it is crucial to diagnose the underlying cause of the issue and address it to prevent the code from reoccurring.

9. How much does it typically cost to repair OBDII code C1223 on a Mercury due to Brake Light Warning Output Circuit Failure?

- The cost of repair can vary depending on the specific cause of the issue and the labor rates in your area. It is advisable to obtain quotes from reputable automotive repair shops for an accurate estimate.

10. Can a faulty ABS module trigger OBDII code C1223 related to Brake Light Warning Output Circuit Failure on a Mercury?

- Yes, a malfunctioning ABS module can contribute to triggering the C1223 code by affecting the communication between the brake system components and the warning output circuit.

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